{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Glucose+challenge+test",
    "query": {
      "intervention": "Glucose challenge test"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 207,
    "total_pages": 21,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Glucose+challenge+test&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-09T10:50:42.755Z",
  "attribution": "Data derived from public ClinicalTrials.gov records. The official record at https://clinicaltrials.gov/ remains the source of truth for current availability, contacts, and full study details.",
  "notes": [
    "This endpoint exposes only public summary fields — no participant contact emails, phone numbers, or scraped investigator contact details.",
    "For contact information and full protocol detail, follow each trial's `official_url` to the ClinicalTrials.gov record.",
    "This API is a navigational aid. It does not provide medical advice, eligibility determinations, or compensation guarantees."
  ],
  "trials": [
    {
      "nct_id": "NCT02062710",
      "title": "Antitussive Effect of a Naturally Flavored Syrup Containing Diphenhydramine, Compared With Dextromethorphan and Placebo",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Cough Reflex Sensitivity"
      ],
      "interventions": [
        {
          "name": "diphenhydramine/phenylephrine/cocoa; dextromethorophan; placebo",
          "type": "DRUG"
        },
        {
          "name": "diphenhydramine/phenylephrine/cocoa; placebo; dextromethorphan",
          "type": "DRUG"
        },
        {
          "name": "dextromethorphan; diphenhydramine/phenylephrine/cocoa; placebo",
          "type": "DRUG"
        },
        {
          "name": "dextromethorophan; placebo; diphenhydramine/phenylephrine/cocoa",
          "type": "DRUG"
        },
        {
          "name": "placebo; diphenhydramine/phenylephrine/cocoa; dextromethorphan",
          "type": "DRUG"
        },
        {
          "name": "placebo; dextromethorphan; diphenhydramine/phenylephrine/cocoa",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Montefiore Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 22,
      "start_date": "2014-01",
      "completion_date": "2014-06",
      "has_results": true,
      "last_update_posted_date": "2018-02-28",
      "last_synced_at": "2026-09-09T10:50:42.755Z",
      "location_count": 1,
      "location_summary": "The Bronx, New York",
      "locations": [
        {
          "city": "The Bronx",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02062710"
    },
    {
      "nct_id": "NCT03221517",
      "title": "Mapping the Shift Worker's Microbiome",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Standardized meal with a glucose challenge test",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "59 Years",
        "sex": "MALE",
        "summary": "40 Years to 59 Years · Male only"
      },
      "enrollment_count": 12,
      "start_date": "2017-09-27",
      "completion_date": "2028-11",
      "has_results": false,
      "last_update_posted_date": "2026-01-23",
      "last_synced_at": "2026-09-09T10:50:42.755Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03221517"
    },
    {
      "nct_id": "NCT03041129",
      "title": "Post-Prandial Liver Glucose Metabolism in PCOS",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Polycystic Ovarian Syndrome",
        "Obesity",
        "Hepatic Steatosis"
      ],
      "interventions": [
        {
          "name": "oral glucose tolerance test",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "MRI of liver",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "21 Years",
        "sex": "FEMALE",
        "summary": "12 Years to 21 Years · Female only"
      },
      "enrollment_count": 19,
      "start_date": "2017-04-14",
      "completion_date": "2018-09-29",
      "has_results": true,
      "last_update_posted_date": "2024-04-17",
      "last_synced_at": "2026-09-09T10:50:42.755Z",
      "location_count": 1,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03041129"
    },
    {
      "nct_id": "NCT05328570",
      "title": "Comparing the Effects of Exercise on the Structure and Function of Fat Tissue",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Adiposity"
      ],
      "interventions": [
        {
          "name": "Oral Glucose Tolerance Test",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 45,
      "start_date": "2020-06-04",
      "completion_date": "2024-12-09",
      "has_results": false,
      "last_update_posted_date": "2025-06-29",
      "last_synced_at": "2026-09-09T10:50:42.755Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05328570"
    },
    {
      "nct_id": "NCT04621656",
      "title": "Sugar Challenge Study",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Type 2 Diabetes",
        "Pre-Diabetes",
        "Healthy"
      ],
      "interventions": [
        {
          "name": "January Mobile Application (Sugar AI)",
          "type": "COMBINATION_PRODUCT"
        }
      ],
      "intervention_types": [
        "COMBINATION_PRODUCT"
      ],
      "sponsor": "January, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 1022,
      "start_date": "2017-11-01",
      "completion_date": "2021-10",
      "has_results": false,
      "last_update_posted_date": "2020-11-09",
      "last_synced_at": "2026-09-09T10:50:42.755Z",
      "location_count": 1,
      "location_summary": "Menlo Park, California",
      "locations": [
        {
          "city": "Menlo Park",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04621656"
    },
    {
      "nct_id": "NCT00841867",
      "title": "The Role of Pulsatile Insulin Secretion (A Study Investigating the Effects of Partial Pacreatectomy on Glucose Metabolism)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Impaired Glucose Tolerance"
      ],
      "interventions": [
        {
          "name": "All subjects will undergo a 120 minute Oral Glucose Tolerance Test at study visit 2.",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 24,
      "start_date": "2008-12",
      "completion_date": "2009-10",
      "has_results": false,
      "last_update_posted_date": "2016-11-17",
      "last_synced_at": "2026-09-09T10:50:42.755Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00841867"
    },
    {
      "nct_id": "NCT04101045",
      "title": "Pathogenesis of the Cardiometabolic Risk in Youth With Type 1 Diabetes",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Type 1 Diabetes",
        "De Novo Lipogenesis"
      ],
      "interventions": [
        {
          "name": "Oral Glucose Tolerance Test",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": "22 Years",
        "sex": "ALL",
        "summary": "13 Years to 22 Years"
      },
      "enrollment_count": 7,
      "start_date": "2019-11-21",
      "completion_date": "2022-03-30",
      "has_results": false,
      "last_update_posted_date": "2023-02-13",
      "last_synced_at": "2026-09-09T10:50:42.755Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04101045"
    },
    {
      "nct_id": "NCT04579939",
      "title": "Oral Glucose Tolerance Testing Using Candy for Cystic Fibrosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cystic Fibrosis"
      ],
      "interventions": [
        {
          "name": "Candy Glucose Tolerance Test",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "10 Years to 21 Years"
      },
      "enrollment_count": 10,
      "start_date": "2021-02-25",
      "completion_date": "2021-12-30",
      "has_results": false,
      "last_update_posted_date": "2022-01-20",
      "last_synced_at": "2026-09-09T10:50:42.755Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04579939"
    },
    {
      "nct_id": "NCT05528770",
      "title": "Evaluation of The Postprandial Impact of Automated Priming Bolus for Full Closed Loop Insulin Delivery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Type 1 Diabetes"
      ],
      "interventions": [
        {
          "name": "FCL+BPS",
          "type": "DEVICE"
        },
        {
          "name": "FCL",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Marc Breton",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 15,
      "start_date": "2022-10-20",
      "completion_date": "2023-01-15",
      "has_results": true,
      "last_update_posted_date": "2025-09-08",
      "last_synced_at": "2026-09-09T10:50:42.755Z",
      "location_count": 1,
      "location_summary": "Charlottesville, Virginia",
      "locations": [
        {
          "city": "Charlottesville",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05528770"
    },
    {
      "nct_id": "NCT06193291",
      "title": "Effect of Hot Water Immersion on Heart Rate Variability and Glucose",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Glucose Tolerance",
        "HRV"
      ],
      "interventions": [
        {
          "name": "Feet heating",
          "type": "PROCEDURE"
        },
        {
          "name": "Calf heating",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "San Diego State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 28,
      "start_date": "2020-03-02",
      "completion_date": "2021-03-01",
      "has_results": false,
      "last_update_posted_date": "2024-01-08",
      "last_synced_at": "2026-09-09T10:50:42.755Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06193291"
    }
  ]
}